Given:
environmental science and geography is taken by a student probability
= 0.25
environmental science is taken by a student probability
= 0.72
Find:
given that the student is taking environmental science, probability
that a student takes geography = ?
Solution:
Let’s image that there are 100 students in the school and 72
of them are taking environmental science while 25 of them take both environment
science and geography.
What this means is that of the 72 of these students that are
taking environmental science, 25 of them are also taking geography. Therefore,
a student that is taking geography given that the student is also taking
environment science is: 25 / 72 = 0.367 or 34.7%
